Velocity

Question 1

What does velocity tell you about an object?

Answer 1

• It’s speed

- It’s direction of travel

Question 2

Give an example of this

Answer 2

If a lorry travels along a straight road at 15m/s (metres per second), in one direction, the velocity is +15m/s. If it then travels in the opposie direction at the same speed, the velocity is -15m/s

Question 3

What doesn’t matter about negative or positive?

Answer 3

It doesn’t matter which direction is called positive or negative as long as opposite directions have opposite signs

Question 4

What idea is used when describing distance?

Answer 4

• Changes in distance in one direction are described as positive
• In the opposite direction they are negative